Must have been an SR-71 (any still flying?) or Aurora-type, high altitude, enormously fast craft. A vehicle streaming two contrails from the direction of 335-345 degrees true overflew Seattle/Issaquah, WA area. Made a high speed, 180 U-turn directly overhead and departed area at very high speed. Estimate altitude at 35,000 feet. Diameter of turn estimated at 2.5 miles. Time from directly overhead to beyond visible horizon heading toward NWest approximately 25 seconds. Vehicle was audible entire time, but shape of vehicle could not be discerned due to altitude. Sun still up, but dusk approaching. Very loud noise consistent with un-hushed military jet engines. No doubt of military origin, but speed, altitude and flight path (plus solo operation) tend to rule out air cap flight due to recent events. Sure you'll get other reports.

((NUFORC Note: This is the second reported sighting that we have received over the last ten days of what the witnesses presumed were "Aurora" aircraft. We are awaiting a report from an individual, known to us, who reported the same type of phenomenon. He is a former U. S. Air Force fighter pilot, who reported the event to us verbally on the day he witnessed it. PD))